FTE 3105321 Clutch Master Cylinder

Clutch Master Cylinder for Ford Super Duty Applications

The FTE CSC-BOX clutch master cylinder, part number 3105321, is a hydraulic clutch control component for manual transmission systems. It converts clutch pedal input into hydraulic pressure to help disengage the clutch in Ford F-250, F-250 Super Duty, and F-350 Super Duty applications.

Built for direct-fit service on select Ford trucks, this clutch master cylinder supports consistent pedal-to-hydraulic transfer in manual transmission setups. The FTE 3105321 is a practical replacement choice when restoring clutch pedal feel and hydraulic operation.

Key Features

• Clutch master cylinder for manual transmission hydraulic actuation
• FTE CSC-BOX product line
• Part number 3105321 for identification and ordering
• OE-style hydraulic control component for select Ford truck applications
• Cross-references LuK LSC327 for the same application

Detailed Description

The clutch master cylinder is mounted at the clutch pedal and converts mechanical pedal force into hydraulic pressure that operates the clutch release system. FTE 3105321 is engineered for select Ford truck fitments, including 1999-2009 Ford F-350, 1999-2007 Ford F-250 Super Duty with Triton engine, 1999-2007 Ford F-350 Super Duty with Triton engine, and 1999 Ford F-250. This part number is also referenced as 3105321 in catalog listings for easy match-up during service.

The CSC-BOX line focuses on clutch hydraulic components for transmission service, with attention to OEM-style function and fit. If you are replacing a worn clutch master cylinder on a Ford F-250 Super Duty or Ford F-350 Super Duty, part number 3105321 provides a direct service option for the hydraulic clutch system.

What It Helps Fix

• Soft or inconsistent clutch pedal feel
• Loss of hydraulic pressure at the clutch pedal
• Difficulty disengaging the clutch
• Clutch pedal travel issues caused by master cylinder wear
• Hydraulic leakage in the clutch control circuit

Installation Notes

Verify vehicle year, engine configuration, and transmission application before installation. This listing includes fitments for 1999-2009 Ford F-350, 1999-2007 Ford F-250 Super Duty, 1999-2007 Ford F-350 Super Duty, and 1999 Ford F-250. After installation, bleed the hydraulic system according to factory service procedures to remove air from the circuit.

Quality Assurance

FTE is part of Valeo’s transmission systems portfolio, which focuses on hydraulic clutch components and OEM-oriented engineering for manual transmission service.